@E-123 Imagine Metal Sonic getting into a fight with Zombot Sonic, probably out of fury now that Eggman can just use the zombified Sonic and no longer Metal, creating a temporary team-up with Tails to save Sonic (Though Metal intends to kill him). Metal bonds with Tails, filling in the void inside Tails now that Sonic was gone, but after the fight, Metal flows slowly into lava somewhere in the world, giving Tails a thumbs up, knowing that throughout his robotic and soulless life, Metal at least made one true friend. Sonic is back to normal, seeing Tails tear up, to which Tails says that he missed his big brother. While that is true, Tails is also hurt knowing that he lost what could have been a true reformed hero. :O